I had oral sex (fellatio) with a prostitute the end of April. I also had protected sex, I put on the condom, my penis went in, and she slowly came off of it while holding my penis. When she was off of me, I saw the condom in place and I covered with my underwear because I didn't want the bouncer to catch us. I was at a strip club. A week or two later, I started to feel a discomfort urinating. I never had a discharged but I took Azetrimocin and took care of the problem. I'm very scared about having something more. Can you please tell me if should be concerned about this?